simplify CI conditions for running core tests

Author: JuliaSprenger

.github/workflows/core-test.yml

@@ -4,10 +4,16 @@ on:
   pull_request:
     branches: [master]
     types: [synchronize, opened, reopened, ready_for_review]
+    paths:
+      - 'neo/core/**'
+      - 'pyproject.toml'
 
   # run checks on any change of master, including merge of PRs
   push:
     branches: [master]
+    paths:
+      - 'neo/core/**'
+      - 'pyproject.toml'
 
 concurrency: # Cancel previous workflows on the same pull request
   group: ${{ github.workflow }}-${{ github.ref }}
@@ -44,40 +50,18 @@ jobs:
         - name: Checkout repository
           uses: actions/checkout@v3
 
-        - name: Get changed files
-          id: changed-files
-          uses: tj-actions/changed-files@v35
-
-        - name: Module changes
-          id: modules-changed
-          # check if core (or toml) has been changed.
-          run: |
-            for file in ${{ steps.changed-files.outputs.all_changed_files }}; do
-              if [[ $file == *"/core/"* || $file == *"/pyproject.toml" ]]; then
-                echo "Core changed"
-                echo "CORE_CHANGED=true" >> $GITHUB_OUTPUT
-              fi
-            done
-          shell: bash  # Necessary for pipeline to work on windows
-
-        - name: Core changed?
-          run: echo "Core changed == ${{steps.modules-changed.outputs.CORE_CHANGED == 'true'}}"
-
         - name: Install numpy ${{ matrix.numpy-version }}
-          if: ${{ steps.modules-changed.outputs.CORE_CHANGED == 'true' }}
           run: |
             python -m pip install --upgrade pip
             pip install numpy==${{ matrix.numpy-version }}
             pip install pytest pytest-cov
             pip install .
 
         - name: List pip packages
-          if: ${{ steps.modules-changed.outputs.CORE_CHANGED == 'true' }}
           run: |
             pip -V
             pip list
 
         - name: Run tests
-          if: ${{ steps.modules-changed.outputs.CORE_CHANGED == 'true' }}
           run: |
             pytest --cov=neo neo/test/coretest